期刊文献+

对比剂浓度及剂量对MSCT髂静脉成像的影响 被引量:3

Impact of concentration and dosage of contrast medium on the image quality of iliac vein on multi-slice spiral CT
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摘要 目的:探讨不同对比剂浓度及注射剂量对MSCT髂静脉成像质量的影响。方法:120例受检者按不同对比剂浓度及注射剂量随机分成6组,Ⅰ组(300 mg I/ml,100 ml),Ⅱ组(150 mg I/ml,100 ml),Ⅲa组(100 mg I/ml,150 ml),Ⅲb组(100 mg I/ml,100 ml),Ⅲc组(100 mg I/ml,50 ml),Ⅳ组(50 mg I/ml,100 ml),每组各20例,注射流率均为3.0 ml/s,均在经足注射对比剂后20 s行MSCT扫描。所有扫描数据均进行横断面、MPR、MIP及VR重建,分别测量髂总静脉上端、髂静脉分叉处及髂外静脉下端的CT值,观察对比剂伪影情况,根据图像质量评判标准分别作出评价并进行对比分析。结果:120例受检者均顺利完成MSCT髂静脉增强扫描。髂静脉强化程度随对比剂浓度的升高而升高,而对比剂相关伪影则随对比剂浓度的降低而下降,Ⅲa与Ⅲb组的图像总体质量优于其它组(P<0.05),获得了优质的横断面及三维重建图像,Ⅲa组与Ⅲb组的图像总体质量差异无统计学意义(P>0.05)。结论:经患侧足部浅静脉以3.0 ml/s的流率注射浓度为100 mgI/ml的对比剂100 ml,延迟20 s开始扫描是MSCT髂静脉成像较理想的对比剂注射方案。 Objective:To assess the impact of concentration and dosage of contrast medium on the image quality of iliac vein on MSCT.Methods:120 cases were divided randomly into six groups according to different concentration and dosage of contrast medium injected,including Group Ⅰ(300mg I/ml,100ml),Group Ⅱ(150mg I/ml,100ml),Group Ⅲa(100mg I/ml,150ml),Group Ⅲb(100mg I/ml,100ml),Group Ⅲc(100mg I/ml,50ml)and Group Ⅳ(50mg I/ml,100ml),the injection rate of the contrast medium was 3.0ml/s.MSCT was performed 20s later after ...
出处 《放射学实践》 北大核心 2011年第1期86-89,共4页 Radiologic Practice
基金 杭州市医药卫生科技计划项目(2006B029)
关键词 对比剂 体层摄影术 X线计算机 髂静脉 血管造影术 Contrast medium Tomography X-ray computed Iliac vein Angiography
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参考文献6

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二级参考文献13

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共引文献46

同被引文献52

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